The employee survey comes on the heels of recent reports from technology companies Google and Twitter, but it is unique in one significant way. It alone is accompanied by letter from a company CEO, in which Cook stresses the companys commitment to being innovative in advancing diversity.
Blacks and Hispanics make up about 18% of Apple's workforce, a ratio that is about triple of those of most other tech firms. 9% of its workers did not disclose their ethnicity.
Apple breaks down the numbers into three categories: leadership, technology and non-technology. The technology category, which is 80% male, includes Genius Bar employees and engineers.
The numbers include its large contingent of store management employees. Apple runs 254 retail stores in the US and 427 globally, according to its most recent quarterly report.
As CEO, Im not satisfied with the numbers on this page, he wrote. Theyre not new to us, and weve been working hard for quite some time to improve them.
But Cook noted that Apples definition of diversity goes beyond traditional categories such as race and gender. It includes personal qualities that usually go unmeasured, such as sexual orientation, veteran status and disabilities, he wrote.
The diversity reports have spurred a national debate about the lack of diversity at Silicon Valleys tech companies and how to improve the ratio. At Google, some 70% of employees are also male, and 61% are white. Twitter's overall employee population is 70% male and 59% white.
While Apples numbers are similar to those of its competitors, some experts say that the company is a step ahead of the rest.
Apple will do everything it can to make their workforce look more like the population they serve, said Fred Sainz, vice president of communications and marketing at the Human Rights Campaign. For 13 years running, the HRC has awarded Apple a perfect score on its corporate equality index, which rates American workplaces on LGBT equality.